Acacia mangium increases the mesofauna density and diversity in the litter layer in Eucalyptus grandis plantations

Zagatto, Maurício Rumenos Guidetti; Pereira, Arthur Prudêncio de Araújo; Souza, Adijailton José de; Pereira, Caroline Medrado; Baldesin, Luis Fernando; Pereira, Rafael Fabri; Cardoso, Elke Jurandy Bran Nogueira

doi:10.1016/j.ejsobi.2019.103100

Cited by 5 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although a significant effect on soil microbes was found when converting pastures to EUs (Sicardi et al., 2004), our results found no significant difference on total biomass, biodiversity and Ex of soil fauna (Table S8), and total PLFAs and Ex of the soil microbe community (Figure S4; Figure 7) among the six types of forest plantations examined. These results are in accordance with forest systems in Brazil, where no variance in the diversity and abundance of soil mesofauna were found in A. mangium , E. grandis and in their mixed plantations (Zagatto et al., 2019a). It is worthy to note that only the SpEx of soil microbes in 20%NS was significantly lower than that in NS in both the wet and dry seasons (Figure 7), which further highlighted the effects of the intercropping ratio on long‐term ecosystem health of mixed Eucalyptus ‐native tree plantations.…”

Section: Discussionsupporting

confidence: 88%

Long‐term effects of intercropping on multi‐trophic structure and bio‐thermodynamic health of mixed Eucalyptus‐native tree plantations

Wang,

Lin,

Zhang

et al. 2023

Journal of Applied Ecology

View full text Add to dashboard Cite

The intercropping approach of Eucalyptus and native trees has been widely recommended, as an ideal replacement for monoculture Eucalyptus plantations (EUs), to ameliorate global biodiversity loss and mitigate environmental change. However, both suitable native tree species (NS) and the best intercropping ratio between Eucalyptus and native trees have not been determined. To fill this gap, a four‐level intercropping gradient of Eucalyptus urophylla planted with eight NS was set up (i.e., 20%NS, 30%NS, 40%NS, 50%NS), monitored and compared with a monoculture E. urophylla plantation (EU) and a randomly mixed plantation of nine NS in southern China. The results showed that, the intercropping ratio of Eucalyptus and native trees had a long‐term effect on tree layer structure and health status, and a cascading effect on the thermodynamic health state of soil microbes. Shade‐tolerant woody species are more suitable for intercropping with Eucalyptus. Intercropping plantations with not less than 30% native trees were more favourable for long‐term survival and growth of both planted Eucalyptus and native trees, and provided much more favourable conditions for the natural immigration of other native trees, which leads to a healthy plant community with significantly higher eco‐exergy than EU. The initial mixing ratio between Eucalyptus and high diversity native trees affected soil fertility through its long‐term effects on the biodiversity and bio‐thermodynamic state of trees and soil microbes. Synthesis and applications. Our results highlight the long‐term positive effect of the intercropping ratio of Eucalyptus and high diversity native trees on multi‐trophic biodiversity conservation, bio‐thermodynamic health development and soil fertility conservation. In the conversion of monoculture EUs to multi‐species plantations, it is recommended to mix more than 30% NS, which have different ecological niches with Eucalyptus.

show abstract

Section: Discussionsupporting

confidence: 88%

Long‐term effects of intercropping on multi‐trophic structure and bio‐thermodynamic health of mixed Eucalyptus‐native tree plantations

Wang,

Lin,

Zhang

et al. 2023

Journal of Applied Ecology

View full text Add to dashboard Cite

show abstract

“…The second case-study in Southeastern Brazil reported an improvement in soil quality in stands containing acacia compared to pure eucalyptus stands due to their soil mesofaunal and microbial attributes (46). In these planted forests, chemical attributes (especially N, low C/N ratio and macronutrients) are strongly related to different mesofaunal orders in the litter layers (47). A higher diversity of mesofaunal orders in acacia monoculture and mixed-species stands than eucalyptus monoculture is probably due to the higher quality of the litter in stands containing acacia than in pure eucalyptus counterparts (34,37).…”

Section: How Do N 2 -Fixing Trees Influence the Interaction Between Microbialmentioning

confidence: 99%

“…Seasonality is another important factor for the organisms that inhabit the soil (48). Higher mesofauna density in soil during drought periods relative to mesofauna density in the litter at the same period in forest plantations of eucalyptus and acacia highlighted the soil's importance as a refuge for the invertebrate community in periods of water scarcity in Southeastern Brazil (47). Forest plantations presented higher mesofauna diversity, but a lower mesofauna density in litter when compared to notillage (15) once secondary forests in regeneration accumulate organic matter of higher quality and present higher niche diversity than agricultural systems.…”

Section: How Do N 2 -Fixing Trees Influence the Interaction Between Microbialmentioning

confidence: 99%

Does the Introduction of N2-Fixing Trees in Forest Plantations on Tropical Soils Ameliorate Low Fertility and Enhance Carbon Sequestration via Interactions Between Biota and Nutrient Availability? Case Studies From Central Africa and South America

Koutika

Zagatto²,

Pereira

et al. 2021

Front. Soil Sci.

View full text Add to dashboard Cite

Plant and/or crop growth rely on nutrient dynamics driven by specific soil biota in different environments. This mini-review aims to provide an overview of interactions between soil organisms, nutrient dynamics, and C sequestration. To this end, we investigated published results from three forest plantations (eucalyptus monocultures and mixed plantations with N2-fixing acacia) on tropical nutrient-poor soils. One case study is located in Central Africa (Congolese coastal plains) and two others in South America (Southeastern Brazil). Overall, the studies showed that soil biota activity exerted positive effects on (i) C accretion, as both soil carbon and belowground and aboveground biomass are driven and enhanced by soil biota; and (ii) on nutrient dynamics and biogeochemical cycles in nutrient-poor soil of tropical ecosystems, which are boosted following C accumulation. On the other hand, the pedoclimatic environment may potentially impact soil functioning of mixed-species plantations through its influence on the composition and activity of bacterial communities. Regardless of the potential risk of acacia invasiveness, benefits such as pulp, fuelwood, electric pole and non-timber products supply, have been reported in Central Africa. We, therefore, conclude that including N2 fixing trees in forestry plantations as reported in this mini-review helps strengthen the links between soil biota, nutrient and SOC dynamics in mixed-species plantations on tropical nutrient-poor soils.

show abstract

Effects of enrichmemt planting with native tree species on bacterial community structure and potential impact on Eucalyptus plantations in southern China

Zhu

et al. 2022

J. For. Res.

View full text Add to dashboard Cite

Multi-generational planting of Eucalyptus species degrades soil quality but the introduction of legumes can improve soil fertility and microbial diversity. However, the effects of introducing non-legume native tree species on soil nutrients and bacterial community structure remain poorly understood. This study investigated the impacts of the conversion of third generation monoculture Eucalyptus plantations to mixed systems including Eucalyptus urograndis with Cinnamomum camphora (EC) and E. urograndis with Castanopsis hystrix (EH), on soil chemical and biochemical properties and bacterial community structure, diversity and functions. First generation E. urophylla plantations were the control. Results show that planting the third generation Eucalyptus led to a significant decrease in pH, organic matter, nutrient content, enzyme activities (invertin, acid phosphataes, and urease), and bacterial α-diversity compare to the controls. However, the mixed planting showed significant improvement in soil chemical and biochemical attributes and bacterial α-diversity, although the E. urograndis and C. hystrix planting had no improvement. Chloroflexi (oligotrophic bacteria) were significantly enriched in third generation Eucalyptus and Eucalyptus + C. hystrix, while proteobacteria increased significantly in the E. urograndis with C. camphora plantings. The relative abundance of multiple metabolic pathways increased significantly in the third generation Eucalyptus plantations whereas membrane transport-related genes were enriched in soils of the mixed systems. The changes in bacterial community structures in the two mixed systems were driven by diversity, organic matter and acid phosphatase, while bacterial functions were affected by invertase, $${\mathrm{NO}}_{3}^{-}$$ NO 3 - -N, diversity and urease. These results suggest that the transformation of successive monoculture Eucalyptus plantations into mixed plantations reduces the depletion of soil nutrients and enhances the ecological function of soil microorganisms.

show abstract

Acacia mangium increases the mesofauna density and diversity in the litter layer in Eucalyptus grandis plantations

Cited by 5 publications

References 41 publications

Long‐term effects of intercropping on multi‐trophic structure and bio‐thermodynamic health of mixed Eucalyptus‐native tree plantations

Long‐term effects of intercropping on multi‐trophic structure and bio‐thermodynamic health of mixed Eucalyptus‐native tree plantations

Does the Introduction of N2-Fixing Trees in Forest Plantations on Tropical Soils Ameliorate Low Fertility and Enhance Carbon Sequestration via Interactions Between Biota and Nutrient Availability? Case Studies From Central Africa and South America

Effects of enrichmemt planting with native tree species on bacterial community structure and potential impact on Eucalyptus plantations in southern China

Contact Info

Product

Resources

About